Which animations were adapted from the game? How was the adaptation?

Here are some examples of animations adapted from games: 1. Genshin Impact: This animation was adapted from the independent game, Genshin Impact, owned by Tengxun Games. It tells the story of friendship and battle between the characters in the game. 2 Demon Slayer: This animation was adapted from the Japanese light novel Demon Slayer, which tells the story of the protagonist Tanjiro's battle with ghosts. 3 Sword Art Online: This animation is adapted from the Japanese light novel Sword Art Online, which tells the story of the protagonist Kirito and other players in the virtual reality game Sword Art Online. 4. Steins;Gate: This animation is adapted from the Japanese light novel, The Gate of the Stone of Destiny, which tells the story of a group of people who enter a time machine in search of key events that can change the past. The degree of adaptation of these animations varied. Some animations would restore the elements of the game as much as possible, while others would be cut or adapted to fit the storyline of the animation.